Kathy Sierra is a co-developer of the SCJP exam and Sun&#39;s practice exam. She is also a Sun Certified Java Instructor and the founder of the world&#39;s largest Java certification website, Javaranch.com.

Bert Bates is a Sun Certified Programmer for Java and has participated in the development of the SCJP exam and Sun&#39;s practice exam. He is the coauthor, with Kathy Sierra, of the previous editions of this book..